Microwave the mushrooms, Cabanossi sausage and oil in a Medium Classic/Rectangular Roaster, uncovered for 5 minutes. Add the sachet of seasoning mix, 800ml hot water and the uncooked pasta and microwave for 8 minutes. Stir and microwave for another 8 minutes.
Top with the packet of sauce prepared as per the instructions on the box. Sprinkle with breadcrumbs, origanum and cheese and microwave for 5 minutes.